Car-truck.



PATENTED'OGT. 9, 1906.

0. s. BULLIAM.

GAR TRUCK.

APPLICATION FILED 1030.18. l90.

wu'rnssst ATTORNEY UNIT D STATES" PATENT,- orrion.

PITTSBURGH EQUIPMENT COMPANY, OF

rrrrsnuno. PENNSYL- VANIA, A CORPORATION 'OF'PENNSYLVANIA. 1

fcAn rnuox.

- .Specificati on of Letters Patent.

' Patented Oct. 9,1906.

Application and December 13,1905, Serial No. 292.243.

I To '(Z/ZZ whorra it may. concern:

. Be it known thatI, .OswAL'n S. PULLIAM, a States, residing at Pittscitizen of the United v burg, in the county of Allegheny and State-of Pennsylvania, have invented new and useful Ir'nprovementsvin Car-Trucks, of which the following is a specification.

My invention relates to 'car-trucks, and" more particularly to a new and improved side-frame and oar-truck bolster.

'An object of the resent. invention is to provide a simple an efiicient construction whereby the bolster may be readily inserted into and removed from the sideframes or truck-arches ofa car-truck.

In the accompanying drawings, which ilhistrate an application 0 my invention, Figure 1 1s a side elevatlona'l'view of a side frame, showing a bolster and springsremovably mounted in the bolster and spring-rece vingopening Of the side frame.

side elevational view of a side frame, showing the manner of inserting thebolsteriinto the 0 ening of the side" frame; Fi 3, a sectionafview taken on line33 of 1, and 13% 4. a perspective view of bolster;

eferring to the drawings, the car-truck com rises twosimilar metal-side frames or .true -arches 1, each formed withiacentral 2, as illustrated and as opening 2. Openin preferred, is of uniform width throu hout and is of greater depth than width. hese o enings are designedto receive the ends of 4 t e bolster 3- and the bolster-springs 4. The

springs 4, and the side flanges 7 guides for the bolster. V I

A characteristic and important feature of the present invention is the bolster 3. As shown, column-guides 8 are formed integral with the bolster, and between saidcolurnnguides the sides of the bolster are rounded, as 1 indicated by the numeral 9. If desirable, the

column-guides may be-pmitted and the boling of the sideframe.

ster sin designe to fit in the bolster-receiving open- 'I preferyhowever, to

'. Fig. 21s a broken fen provided with a 1y provided with rounded portions form the column-guides 8 integral with the metalbolsterand arrange said guides'so that they will make contact with the bolsterguidesof the side frame when the bolster is -surface the springs 4 are placed .under the bolster.

What I claim is.--.'v v 1. In a car-truck, a side frame formedwith a bolster-receiving opening; a bolster having an end portion-provided with a pair-offcolnmnrguldes on .oppositesides of" the bolster v andformed V with a; rounde'd'side' portion be tween the colunm 'guides,

2. Inacar-truek,asidefraine-formed with urnnguldes, said bolster in said opening. I

3;: In a car-truck,'a side frame-formed with a bolster-receivim opening of uniform width throu hout", 'a'bol ster havm an endpor tion air of co umn-guides on opposite sides of t e bolster and formed with a rounded portion between the column guides, said bolster and its column-guides rep movably mounted in said openin opening is surrounded by top andbottom 4, In a car-truck, a side frame ormed with a bolster-receivin opening of uniform width throughout and o greater depth than width, j

and a olster having an end portion provided with column gui es and formed with a rounded portion between the column-guides,

said bolster and its column-guides removably mounted in said 0 ening.

= 5. In a car truc a side frame formed wit a bolster-receiving Opening, a bolster'l aving an end portion. provided with column uides and rounded sides between the co umnguides, said bolster and its column-guides removably mounted in-the o ening.

l 6. In a car-truck, a side ame formed with a bolster-receiving opening and side'flan es adjacent to the opening, a bolster provi ed with column-guides, said bolster and its cola bolster-'receivin opening of uniform width *throu hout and e greater depth than width,

Iiolster havin an {end portion provided with two paits of 05 v and its column-guides removably mounted j LII umn-guides adapted to be inserted edgewis'e in the opening and turned, to cause the colnn1n-gu1des to engage the side flanges.

7. In a car-truck, a side frame formed with a bolster-receiving opening, a bolster having an end portion comprising a fiat top and bottom member and rounded side portions and column guides formed integral therewith, said bolster and its column-guides removably 1'0 mounted in the opening.

8. In a oar-truck, a side frame formed with a bolster receiving'opening and ooluninguide-engaging means adjacent to the open- OSWALD S. lfULLIAM.

. Witnesses W. G. DOOLITTLE', MARGARET HUGHES. 

